Nazca Booby
Nazca BoobyNazca BoobyNazca BoobyNazca Booby

Nazca Booby

Sula granti

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
5–10% · With luck
overall probability at Isla del Coco National Park
12 Verified records at Isla del Coco National Park
February Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The Nazca booby (Sula granti) is a large seabird of the booby family, Sulidae, native to the eastern Pacific. First described by Walter Rothschild in 1902, it was long considered a subspecies of the masked booby until recognised as distinct genetically and behaviorally in 2002. It has a typical sulid body shape, with a long pointed orange-yellow bill, long neck, aerodynamic body, long slender wings and pointed tail. The adult is bright white with black and white wings, a black tail and a dark face mask. Wikipedia →

5–10% of wildlife watchers report a Nazca Booby sighting in Isla del Coco National Park, based on 12 days of visitor records from GBIF citizen-science data.

Closest Relatives at Isla del Coco National Park

Red-footed Booby
LC

Red-footed Booby

☀️ Diurnal Bird

Sula sula

90–100% · Very likely
Masked Booby
LC

Masked Booby

☀️ Diurnal Bird

Sula dactylatra

30–40% · Possible
Great Frigatebird
LC

Great Frigatebird

☀️ Diurnal Bird

Fregata minor

90–100% · Very likely
Magnificent Frigatebird
LC Endemic

Magnificent Frigatebird

☀️ Diurnal Bird

Fregata magnificens

20–30% · Possible

📅 Monthly Probability

5–10
Jan
10–20
Feb
<5
Mar
10–20
Apr
10–20
May
5–10
Jun
5–10
Jul
5–10
Aug
<5
Sep
<5
Oct
10–20
Nov
5–10
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Galápagos Islands 🇪🇨 Ecuador
40–50%
2 Machalilla National Park 🇪🇨 Ecuador
10–20%
3 Isla del Coco National Park 🇨🇷 Costa Rica
5–10%
4 Cabo Blanco Absolute Nature Reserve 🇨🇷 Costa Rica
5–10%
5 Channel Islands National Park 🇺🇸 United States
<5%
6 Manuel Antonio National Park 🇨🇷 Costa Rica
<5%
7 Coiba National Park 🇵🇦 Panama
Insufficient data
8 Olympic National Park 🇺🇸 United States
Insufficient data
9 Darién National Park 🇵🇦 Panama
Insufficient data
10 Las Baulas Marine National Park 🇨🇷 Costa Rica
Insufficient data
11 El Vizcaíno Biosphere Reserve 🇲🇽 Mexico
Insufficient data
12 Corcovado National Park 🇨🇷 Costa Rica
Insufficient data
13 Great Bear Rainforest 🇨🇦 Canada
Insufficient data

Quick answers

What are the chances of seeing a Nazca Booby in Isla del Coco National Park?

About 8% of wildlife watchers report a Nazca Booby sighting in Isla del Coco National Park, based on 12 days of visitor records from GBIF citizen-science data.

When is the best time to see Nazca Booby in Isla del Coco National Park?

February has the highest sighting rate for Nazca Booby in Isla del Coco National Park in our monthly data.

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